Logancha is a
meteorite crater in
Siberia
Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive region, geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a ...
, Russia. It is in diameter and the age is estimated to be 40 ± 20 million years old (most likely
Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ...
). The crater is not exposed at the surface.
References
Impact craters of Russia
Impact craters of the Arctic
Eocene impact craters
{{Siberia-geo-stub